Measuring instrument for determining displacements in soil, rock

Details Measuring instrument for determining displacements in soil, rock Measuring instrument for determining displacements in soil, rock

1992-08-31

1994-08-16

Noland, Thomas

Measuring and testing

Specimen stress or strain, or testing by stress or strain...

Earth stresses

73 84, G01B 500

Patent

active

053376137

ABSTRACT:
A measuring instrument includes first and second rigid, elongate measuring elements which are interconnected by a flexible element. The measuring elements are supported in a measuring tube inserted in the foundation soil. Whenever a displacement occurs in the foundation soil or construction, the measuring tube is deformed and the second measuring element is pivoted with respect to the first measuring element. The curvature or bending which thereby occurs in the flexible element of suitable dimensioning or configuration is preferably determined by at least one wire strain gage fitted to the flexible element in the plane of deformation, the elongations being converted, for example by use of a Wheatstone bridge circuit, into proportional electrical current or voltage signals. Preferably, wire strain gages are disposed on all four mutually perpendicular outer sides of the flexible element, in order to allow for the detection of displacements in mutually perpendicular planes.

REFERENCES:
Deflectometer, 1 page, "Indicating of Lateral Displacements. Relative Measurements in any Included Boreholes".
Rock Mechanics, Supp. 8, pp. 349-367, 1979, S. Hata, et al., "Field Measurements and Consideration on Deformability of Izumi Layers".

Affiliated with

Also associated with

Rating

Measuring instrument for determining displacements in soil, rock does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Measuring instrument for determining displacements in soil, rock, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Measuring instrument for determining displacements in soil, rock will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-944297